mirror of
https://github.com/containers/podman.git
synced 2025-06-07 07:45:34 +08:00
8a16674722
add the ability to checkpoint and restore containers on v2podman Signed-off-by: Brent Baude <bbaude@redhat.com>
80 lines
2.7 KiB
Go
80 lines
2.7 KiB
Go
package containers
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
|
|
"github.com/containers/libpod/cmd/podmanV2/parse"
|
|
"github.com/containers/libpod/cmd/podmanV2/registry"
|
|
"github.com/containers/libpod/cmd/podmanV2/utils"
|
|
"github.com/containers/libpod/pkg/domain/entities"
|
|
"github.com/containers/libpod/pkg/rootless"
|
|
"github.com/pkg/errors"
|
|
"github.com/spf13/cobra"
|
|
)
|
|
|
|
var (
|
|
checkpointDescription = `
|
|
podman container checkpoint
|
|
|
|
Checkpoints one or more running containers. The container name or ID can be used.
|
|
`
|
|
checkpointCommand = &cobra.Command{
|
|
Use: "checkpoint [flags] CONTAINER [CONTAINER...]",
|
|
Short: "Checkpoints one or more containers",
|
|
Long: checkpointDescription,
|
|
RunE: checkpoint,
|
|
Args: func(cmd *cobra.Command, args []string) error {
|
|
return parse.CheckAllLatestAndCIDFile(cmd, args, false, false)
|
|
},
|
|
Example: `podman container checkpoint --keep ctrID
|
|
podman container checkpoint --all
|
|
podman container checkpoint --leave-running --latest`,
|
|
}
|
|
)
|
|
|
|
var (
|
|
checkpointOptions entities.CheckpointOptions
|
|
)
|
|
|
|
func init() {
|
|
registry.Commands = append(registry.Commands, registry.CliCommand{
|
|
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
|
|
Command: checkpointCommand,
|
|
Parent: containerCmd,
|
|
})
|
|
flags := checkpointCommand.Flags()
|
|
flags.BoolVarP(&checkpointOptions.Keep, "keep", "k", false, "Keep all temporary checkpoint files")
|
|
flags.BoolVarP(&checkpointOptions.LeaveRuninng, "leave-running", "R", false, "Leave the container running after writing checkpoint to disk")
|
|
flags.BoolVar(&checkpointOptions.TCPEstablished, "tcp-established", false, "Checkpoint a container with established TCP connections")
|
|
flags.BoolVarP(&checkpointOptions.All, "all", "a", false, "Checkpoint all running containers")
|
|
flags.BoolVarP(&checkpointOptions.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
|
|
flags.StringVarP(&checkpointOptions.Export, "export", "e", "", "Export the checkpoint image to a tar.gz")
|
|
flags.BoolVar(&checkpointOptions.IgnoreRootFS, "ignore-rootfs", false, "Do not include root file-system changes when exporting")
|
|
if registry.IsRemote() {
|
|
_ = flags.MarkHidden("latest")
|
|
}
|
|
}
|
|
|
|
func checkpoint(cmd *cobra.Command, args []string) error {
|
|
var errs utils.OutputErrors
|
|
if rootless.IsRootless() {
|
|
return errors.New("checkpointing a container requires root")
|
|
}
|
|
if checkpointOptions.Export == "" && checkpointOptions.IgnoreRootFS {
|
|
return errors.Errorf("--ignore-rootfs can only be used with --export")
|
|
}
|
|
responses, err := registry.ContainerEngine().ContainerCheckpoint(context.Background(), args, checkpointOptions)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, r := range responses {
|
|
if r.Err == nil {
|
|
fmt.Println(r.Id)
|
|
} else {
|
|
errs = append(errs, r.Err)
|
|
}
|
|
}
|
|
return errs.PrintErrors()
|
|
}
|